Yes , on my 1995 Ford Explorer XLT there is a cold fill mark . When the engine is
cold the coolant level should be up to the mark
Fill your coolant reservoir and the light should turn off. Do it soon or your engine may over heat.
You should add coolant with the engine off and cool, top off the radiator and fill the coolant reservoir to the cool or cold level. When the system is hot or running it will be pressurized and will be dangerous to open. You can however add coolant to the overflow reservoir at any time.
There is no cap on the radiator; instead, the coolant reservoir is pressurized along with the rest of the cooling system. Look on the passenger side, under the hood. You should see the windshield washer reservoir AND the coolant reservoir. Be careful with the lid of the coolant reservoir. If the engine is hot, it will blow off in your face.
Add the coolant into the coolant reservoir. Be sure the engine is cool when you remove the cap off the reservoir.
The reservoir has two level lines - one for "cold engine" and the other for "hot engine". If the engine is hot, and the coolant level is low, fill the reservoir to the "hot engine" level. When the engine is cold and the level is low, I usually" top off" the radiator and fill the reservoir to the "cold engine" level.
The heat is not working because you are very low on coolant, probably because of the leak. Seems to me that it should leak worse when it is running, so I am going to assume you are talking about the coolant overflowing the reservoir, in which case goes back to you being low on coolant and the engine boiling the coolant.
Top off the coolant reservoir.
The battery on a 1995 Chevy Lumina 3100 is located on the right side of the car underneath the engine coolant reservoir. To change the battery, you have to take off safety bar, remove engine coolant reservoir, then undo the battery restraints. Washer fluid reservoir is on right, over battery. Coolant reservoir is on left. There is a hold down piece at bottom of battery, will need an extension to reach it.
One way is to let the car idle with the reservoir cap off, called "burping" should get rid of most air pockets in the engine.
No. When the engine is running coolant is heated and expands. Excess coolant then flows from the radiator to the expansion (overflow) tank. When the engine is shut down coolant cools and contracts drawing fluid back out of the tank to keep the radiator topped off.
You shouldn't need perform any special tasks to get the air out of the cooling system. Just fill the radiator as much as you can (if you can open the radiator that is, some vehicles don't have a radiator cap) then fill the coolant reservoir to the "cold" mark and run the engine long enough to get the heat up a bit. That will cause any air to expand and push out through the overflow. Turn off the engine, let it thoroughly cool and that should pull in coolant from the reservoir. After the engine has cooled, check the reservoir and add coolant as necessary to bring it up to level. Repeat that process a few times over the next few days and you should eventually get to the point that you're not needing to add more coolant to the reservoir. At that point, the air should be out.
You can check the coolant reservoir when the engine is cold, if the coolant level is below the add line top it off with the proper coolant, not just water. It is not a good idea to add just plain water. You should use at least a 50/50 mix of water and antifreeze.